Heeling-machine.



No. 781,750. PATENTED FEB. 7, 1905. G. F. STEWART & G. S. JOHNSON.

HEELING MACHINE.

APPLICATION FILED MAY 1. 190a.

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No. 781,750. PATENTED FEB. 7, 1905. G. F. STEWART & G. S. JOHNSON.

HEBLING MACHINE.

APPLICATION FILED MAY 1. 1903.

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Min-MM 3M M No. 781,750. PATENTED FEB. 7, 1905. G. F. STEWART & G. S.JOHNSON.

HEELING MACHINE.

APPLICATION FILED MAY 1. 1903.

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No. 781,750. PATENTED FEB. 7, 1905. G. F. STEWART & O. S. JOHNSON.

HEELING MACHINE.

APPLICATION FILED MAY 1. 1903.

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I [I WEN-mp No. 781,750. PATENTED FEB. 7, 1905. G. F. STEWART & G. S.JOHNSON.

HEELING MACHINE.

APPLIUATION FILED MAY 1. 1903.

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M mm. EMA [OWN No. 781,750. PATENTED FEB. 7. 1905. G. P. STEWART & G. S.JOHNSON.

HEELING MACHINE.

APPLIOATION FILED MAY 1. 1903.

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EELING MACHINE -IEL iHZi

APPLXGATIUN FILED MAY 1. 1903.

No. 781,750. PATENTED FEB. 7, 1905. G. F. STEWART & G. S. JOHNSON.

HEELING MACHINE.

APPLIOATION FILED MAY 1. 1003.

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Pi -l I WITNESSES: IPh/EHTDFKQ Patented February '7, 1905.

UNTTEE STATES PATENT @EETCE.

GEORGE F. SlElYART AND CHARLES S. JOHNSON, OF LYNN, MASSA- CI 1 US ETTS.

HEELlNG-IVIACHINE.

SPECIFICATION forming part of Letters Patent No. 781,750, dated February'7, 1905.

Application filed May 1, 1903. $erial No. 155,144.

To 11/7] whom it 7114/ con/(writ.-

Be it known that we, Gum-1o n F. Srmvart'r and ll.\RLIGSS..lOIlNSON,CltlZGDSOftllOUlilttll States, and residents of Lynn,in the county of Essex and State of Massachusetts, have invented certainnew and useful Improvements in l'leeling-Machines, of which thefollowing is a specification.

()ur invention relatesto improvements in heeling-machines, and in thepresent specification we have shown and described them as applied to amachine of the type patented to H. A. Henderson June 20, 1882, and longknown in the art as the National machine.

As our invention relates entirely to improvements in the devices whichlieabove the main bed-plate of the machine, we have in the accompanyingdrawings indicated only a portion of the mechanism below said bed-plate,as we believe the same to be entirely familiar to those skilled in theart.

in the drawings, Figure l is a front view of the machine with ourimprovements applied thereto, and Fig. 2 is a rear view. l ig. 3 is aview in top plan and partial section, the section being on the line .1 mof Fig. 1. Figs. 'l, 5, and e are enlarged views of portions of themechanism to be hereinafter more fully described. Fig. T is a side viewupon the vertical section-line of Fig. 2. Fig. 8 is a similar view, incentral vertical section, of the nail-plate supporting and actuatingmechanism and connecting parts. Fig. 9 is an en larged view of a portionof Fig. b. Fig. 10 is an enlarged view in plan of the nail-plate,feeding templet, and connecting parts. Fig. 11 is a similar view inelevation of such portion of the machine asisnecessary toillustratc themanner of unlocking the nail-block and restoring it to its originalposition without operating the machine, as hereinafter more fullyexplained.

ln machines of the type in question the work to be done is usuallytwofold-viz., the attaching of the heel proper and the subsequentattachment of the top lift. A portion heelin b of our presentimprovement lies in devices whereby these two operations may beperformed consecutively by the machine, which is the more common method.or whereby either operation may he performed continuously for anydesired number of times without the other. The machine is therebyadapted, among other things, to be worked in the ordinary way, in whichthe top lift is spanked on separately, and also for applyingsurface-nailed heels, where the whole of the heel, including the toplift. is applied at one operation.

In machines of the character to which our present improvements areadapted a nail-plate or nail-carrier is employed consisting of a metalblock containing vertical perforations properlydisposed to receive andhold the nails to he driven. This block is provided with a number ofperforations to contain the nails required for attaching heels ofvarious shapes and sizes, while fora particularshape and size theparticular perforations to be filled are determincd by the useof atemplet arranged above the heelhloek and perforated only to correspondto the location of the nails in the given heel. 'lhis templet of courseis changed for each size or shape of heel involving a different locationof the driven nails and is so constructed that its perforations registerwith certain perforations in the nail-block. In operation an attendant,usually a boy, supplies the nail-block with the necessary nails bydroppingonc through each of the perforations of the templet, the nailsso dropped being thereby guided into their proper places in thenail-block. In order to support the nailsin the perforations of thenail-block, a thin plate is provided, arranged to cover the lower endsof the perforations when the block is in position to be filled withnails, but to be moved away when the block is over the heel, the latterthen serving as a support for the nails until driven. \Vhen thenail-block is brought forward as described, the nail-covering platemoves forward with it until the block is in position over the shoe, whenthe plate is withdrawn by the tension of a coiled spring, against whichtension it had been held while carried forward with the block by meansof a dog or linger until the block reached its foremost position overthe heel. At this time the dog or finger is tripped by coming in contactwith a stop, and the tension of the spring draws the covering-plate backto its normal rearward position.

All the foregoing mechanism is old and well known in the art. Itsembodiment in the machine shown in the drawings will be hereinafterspecifically pointed out.

After the shoe to receive the heel has been put in place with the soleup upon the jack 1, which for convenience is made to slide in and outupon the bed-plate of the machine in the ordinary manner, the jack isslid into its inner or working position, and the heel to be attached isplaced upon the sole of the shoe upon the jack by the operator, itsposition thereon and the position of the shoe itself being centered byappropriate guides 2 2, (see Figs. 1, 7, and 9,) so that the heel may bein proper alinement and ready for the descent of the nail-drivers to behereinafter described. The nail-block 3, (see Figs. 7, 8, 9, and 10,)which has already been filled in the manner described by the use of thetemplet 4, (also well shown in Fig. 3,) is now moved into position overthe heel and in line with the gang of nail-drivers, which are adapted tobe forced downward, as will be hereinafter more fully described. Thismotion of the nail-block is accomplished by means of the lever 5,preferably hand-operated, which through the link 6, thebell-cranklever'T, and link 8 is attached to a sliding plate marked 9and shown as formed as an extension of the block 3. (See Figs. 8 and 9.)After the block 3 has thus been brought into its forward position it isdesirable to force it downward, so as to bear firmly upon the heel andhold it in place on the shoe, and also desirable to lock it when thuspositioned. This drawing down of the block and locking it in position isaccomplished by the continuation of the same motion of the lever 5 bywhich the block was moved out, the lever for this purpose being stillfurther pressed down against the pressure of a spring 10, upon which theplate supporting the nail-block is mounted. When the sliding plate uponwhich the nail-block 3 is located has been drawn to the front by thecontinued movement of the lever down against the pressure of the spring10, the rear end G of the sliding plate is carried down past a post orextension P, thus locking the nail-block 3' against'any backward mo tionuntil the plate which carries it has been raised vertically by theaction of the spring 10. This plate is also locked against forwardmotion by the pin W engaging with the slot Q, as shown in Figs. 9 and10. It will be seen,

Thislocking device is important, as the drivers must be finally inposition to perfectly match the perforations in the nail-block upon thedescent of the cross-head. This arrangement of the plate with referenceto the post or extension P is such that it insures an upward verticalmotion of the nail-block 3 sufficient to clear the ends of the nailswhich are left projecting through the heel to receive the top lift. Vereit not for this arrangement the nailblock 3 would have a tendency tomove backward horizontally, and consequently bend the ends of the nails.The above matter is well shown in Figs. 8 and 10. The locking down ofthe block in its forward position is accomplished by means of anotch 12,formed on the end of a spring-arm 13, (see Fig.- 2,) which is mountedupon and carried down by the part which supports the nail-block when thesame is depressed and which in its depressed position engages with ashoulder 14, formed upon the base of the spring-supporting device. Thislocking device is well known in the art. The nails in the nail-block arenow in position to be driven into the heel. This is accomplished in theordinary way byagang of drivers 15, attached to the driving-block 16 andpositioned thereon to correspond to the positions of the perforations inthe nailblock 3.. These drivers are now forced down by depressing thecross-head 17 of the machine, upon which the driving-block is carried.The machine performs this operation automatically when the operatordepresses a treadle. This treadle and the operating mechanism of themachine are not shown because, as already stated, the construction iswell known, particularly as embodied in the National machine. Upon thedescent of the cross-head the drivers enter the perforations in thenail-block and force the nails which are therein downwardly through theheel into the sole of the shoe, thereby securing the two together, andby the continued operation of the machine the drivers return to theirupper position and the machine stops. On this return or up stroke of thecross-head the nail-block is unlocked and after the driver has risensufiiciently high is carried back to its original position. .Theunlocking of the nail-block is performed as follows: It will beremembered that it was locked down by the notch 12 on the end of thespring-arm 13 engaging the projection 14:. To release this notch fromits engagement, an arm 18, attached to a rock-shaft 19, Fig. 5, issodisposed with reference to the notch on the end of the spring-arm 13that when the shaft is rocked the spring-arm is forced out and the notchreleased from engagement. The rocking of this shaft is accomplished uponthe return or up stroke of the cross-head of the machine by an extension20, attached to an arm which is carried by and moves with thecross-head, which extension is provided with a pivotally-supportedprojection 20, which as the cross-head rises engages with and lifts apawl or arm 21, attached to the rock-shaft 19. (See Figs. 3 and l.) Assoon as the notch is disengaged the spring forces the nail-block up andanother spring, 22, which has been actuated by the bell-crank lever Tand compressed by the original moving forward of the hand-lever 5, beingnow free to act carries the hand-lever and by'means of its connectionwith the nail-block also carries the latter back to their originalpositions.

This spring "22 is well shown at Fig. 7.

It will be understood that the projection is so mounted on the extension20 that when the cross-head descends it will be rocked about its pivotwhen coming in contact with pawl 21 and will not, therefore, actuate therockshaft 19. During the upward movement of the cross-head, however, thesaid projection 91)" is prevented from turning, and by its engagementwith the pawl 21 the shaft 19 is rocked, as aforesaid.

If the class of goods for which the machine is being used is that mostcommonly employed, in which a top lift is to be subseqeuntly spanked onor driven onto the ends of the nails which are left projecting from theheel, another operation must take place, which is as follows: First, thespanking de vice must be brought into the position immediately above theheel formerly occupied by the driving device. To this end the spankingand driving devices are both mounted upon a bed adapted to be slidsidewise upon the crosshead of the machine into and out of the positionimmediately over the heel. The operation of the machine heretoforedescribed had left the driving device in this position. To remove thisand put in its place the spanking device, a lever 23 is provided, whichis connected at its upper end by a connectingrod 23 with a sliding block16 and having its power end formed with a pin 21. A pair of slots 26,(see Fig. 3,) one, inclined, as shown in Fig. 9., and the other, 26,vertical, are formed in the opposite walls of what 1 may be termed abox" 27, wluch, as shown in nected by a link 28 with and is operated byl the motion of the nail-block carrier.

As has before been pointed out the motion of this nail-block carrier isimparted to it by the hand-lever o If this hand-lever is not operated,the parts are in the position shown in Fig. 5, with the pin 94: engagingwith the inl clined slot. If now the treadle of the machine be againdepressed, the lever 23 is carried downward by reason of its attachmentto the cross-head and is also swung by the oper ation of the inclinedslot, and swinging this lever slides the block carrying the driving andspanking device. sand thereby moves the driver out of place and thespanker in place over the heel, the return or up stroke of the lcross-head restoring the parts to their original position.

In order to obtain a positive and exact motion of the block 16 from oneposition to another, the connecting-rod 22. is made in two partslongitiulinally. which are united by means of an interiorly-locatedplunger and spring, as shown at Fig. (i.

\Vhen it is desired to have the cross-head of the machine descend andascend with the driving mechanism in place to drive, the handlever 5 isdrawn forward, 'as above described,

and the pin 2% on the end of the lever 23 is thus brought into thevertical slot 26, the walls of which serve to lock the said leveragainst movement around its fulcrum, while still permitting it to ascendand descend with the cross-head.

It is sometimes desirable to be able to unlock the nail-block after ithas been locked and to restore it to its original position withoutoperating the machine. For this purpose a supplemental lever is mountedupon the hand-lever 5, which supplemental lever is connected by a linkor rod 31 with a bar or plate 31, which (see Fig. 7) engages with aprojection on and is adapted to operate the rockshaft 19, therebyreleasing the notch 12 of the spring-arm 13. This will be clearly seenby an examination of Fig. 11, in which the parts are shown in theposition they occupy when the nail-block has been brought down andlocked. In order to unlock the block by hand, the workman moves thesupplemental lever, which, through the rod 31 and bar b1, rocks theshaft 19 and rel ases the notch 12.

1. In a machine of the character described, the combination of anaildriving device, a top-lift-spanking device, and means controlled bythe operator whereby either of said devices may be automatically andcontinuously brought into operative position.

2. .In a machine of the character described, the combination with amovable nail-block, and means for locking said block in operativeposition, of a hand-operated device whereby the nail-block is broughtforward, downward, and into engagement with said locking means at asingle operation.

3. In a machineof the character described, the combination with amovable nail-block, and means for locking said block in operativeposition, of a hand-operated device whereby the nail-block is broughtforward, downward, and into engagement with said locking means at asingle operation, and means for subsequently automatically unlocking thenailblock.

carried downward, and brought into engagement with said locking meanswhen in its downward position.

6. In a machine of the character described, the combination with anail-block of means for unlocking the block when locked down,automatically carrying it upward a predetermined distance, and thencarrying it backward.

In testimony whereof we have hereunto subscribed our names this 7th dayof April, 1903.

GEORGE F. STEWVART. CHARLES S. JOHNSON. Vitnesses:

ALEX. P. BROWNE, ELLEN B. TOMLINSON.

